I'm working on a vision based control project, which will be implemented on a pc-bot. The robot will be able to self-localize based on natural landmarks (corners, straight lines, etc) in indoor environments.

I need a good webcam that wil allow the robot recognize the landmarks in different lighting conditions.

Have you tried Logitech Pro 4000/5000 ? Which one is better for this task and what issues did you guys encountered ?